Here is a cute way to have students practice their -1, -2, & -3 subtraction facts. I love how motivated they get to find all the cards and that it gives them a chance to move around the room. You simply print and put up the cards around the room. Each card has a subtraction sentence. The students get a recording sheet to go around and write down the answers.
-20 Black and white monster subtraction cards
-20 Color monster subtraction cards.
Useful tip: Tape the cards up around the outside of your classroom. This helps the activity to be more organized and less chaotic. The students always enjoy doing these types of activities!